What was the most important effect of the annexation of the mexican cession

The most important effect of the annexation of the Mexican cession was the increase of the United States by size. Some of the surrendered territories were California, Utah, Nevada, most of Arizona, half of New Mexico, a quarter of Colorado and a small porting of Wyoming.

Many citizens are in danger of contracting a food-borne illness.more people are living with chronic illnesses.pathogens are becoming stronger and harder to defeat.